Question

A boy gets 3 marks for each correct sum and loses 2 marks for each incorrect sum. He does
24 sums and obtains 37 marks. The number of correct sums were
a) 20. b) 17. c) 31. d) 19

Answer 1

Answer:

17

Step-by-step explanation:

24-17=14

so now 17*3-14

51-14

37

Answer 2

Hey!!

24 - 17 = 14

=17×3-14

= 51-14

= 37

So, b) is the answer!!

Hope it helps

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